Improvement in dies for forging fifth-wheel heads



2Sheet s-Sheet 1.

No. 109,781. Patented Nov. 29, 1870.

fay-1 1 f r "i 1* 2 Sheebs-Sheet 2.

P. VAN PATTEN.

Making Fifth Wheels. N0. 109,781. v Patented N0v.29;. 1870.

4 ddltiitil sale jfiatznt affine.

EEEDERIcK VAN PATTEN, 0E AUBURN, NEW YORK, ASSIGNOR TO HIMSELF,

E. n. OLAPP, AND M.

s. FITCH, 0 SAME PLAoE.

Letters Patent No. 109,781, dated November 29, 1870.

IMPROVEMENT IN mes FOR' meme FIFTH-WHEEL HEADS.

The Schedule referred to in these Letters Patent and niaking part at thesame.

To all-whom it may concern.- v

'Be it known that I, FREDERICK VA; PATTEN, of Auburn, in the county ofCayuga and State of New York have invented a new'and useful Improvementin Dies for Forging Fifth-\Vheel Heads; and. I do hereby declare thatthe followingis a full, clear, and exact description thereof, which,will enable others skilled in the art to make and use the same,reference being bad to the accompanying drawing forming part of thisspecification, in which- 1 Figure 1 is a face view of the lowerdie-plate.-

Figure-2 is a face view of the upper die-plate Figure 3 is a detailsection of the dies, taken through the line x a, figs. 1 and 2.

Figure 4 is a detail sectional view of the same, taken through the linex :0 figs. l and 2.

Figure 5 is a detail sectional view of the dies, taken through the line2: x figs. 1 and 2. p Figure 6 is a detail sectional iew of the dies;taken through the line at x, figs. l and 2.

Theforegoing'are shown on Sheet I of drawing.

Figure 7, Sheet II, represents the bar to be operated on by (lie No. 1;r

Figure 8, the blank, after being operated on by die No. l;

Figure 9, the'blank, No. 3

Figure 10,No. 4, the blank as it. comes from the finishing-die N 0. 4;and I 1 Figure 11,-No. 5, the blank No. 4 trimmed and ready to be weldedto the half-round iron to form the fifth-wheel.

The bar and blanks unfinished are numbered-1, 2,3, and 4 respectively,to correspond with the separate numbered dies bywhieh they are operatedon:

Similar letters of reference indicate corresponding parts.

My invention has for itsobject to furnish an improved means for forgingthe heads for fifth-wheels, finishing their tops or upper sides, andfinishing their front and rear ends ready for welding; and v Theinvention consistsin the construction of the dies for forming the saidheads, as hereinafter described.

The bar No. 1 to be operated upon, shown in fig. 7 is first placed inthe breaking-down the .No. 1, Sheet after being operated on by die I,and, after being struck, by the hammer carying the top dies, it isturned one-quarter and-placed in the .planeor edging-die, marked N o. 2,between which two dies it is alternated two, three, or four times,according to the weight of the hammer, the-operation being continueduntil the blank fits the die exactly. The.

blank is now in the form represented by No. 2, fig. 8, Sheet II. v

The blank No. 2 is now placed, on its edge, injthe gauge-die marked 3,the two lugs of the blank embracing the tenon-like projection of thedie, to hold the .blankin sucha position that'the stock may be properlydistributed for the finishing die, and reducingthe blankinto the formshown by No. 3, fig. 9, Sheet II, the main points being to havesufficient stock at the forward end of the blank and reduce the blank tothe proper width. p

The blank N 0.. 3 is then placedin the finishing-die 4, which brings itto the form No. 4, shown in fig. 10, Sheet II, and finishes the forging.1

No. 5, fig. 11, Sheet II,represents No. 4 trimmed off and ready forwelding to the half-round iron to form the wheel.

The dies are arranged in the order shown 'in the' drawing, to bring thefinishing-die, which requires the most strength, beneath the center ofthe hammer, to diminish the danger dies;

The notches in the breaking-down die are to collect stock to form thelugs, and the bevel at the back end of said die is to leave stock tofill the back end of the finishing-die after the blank has been properlyedged in die-No. 3.

The concave at the forward end of die No. 3 is to flatten the forwardend of the blank, and so distribute the stock that it will fill theforward end of the finishing dieNo. 4.-.

The die'No. 3 also edges the blank, reducing ,it to the properwidth toenter the finishing-die, and so distributes the stock thatit willexactly fill the said fin ishing-die when'acted upon by the hammer.

The finishing-die brings the lugs to the proper form and distributes thestock to the forward and back ends oft-he blank ready for welding to thefront rod and to the half-round iron that forms the body of the wheel,the stock being so distributed that the rear end of the head does notrequire to be upset when welding,

Having'thus described my invention,

Iclaim as new and desire to secure by Letters Pat- -ent The two sets ofdies, 1 2 3 4, formed in the dieplates A B, for finishing the heads offifth-wheels ready for welding, substantially as herein shown anddescribed.

FREDERICK 'VAN PATTEN.

Witnesses:

HORACE '1. 000K, OTIS W. BAKER.

of breaking the \tenons of the

